CN108027544A - Light-emitting device - Google Patents
Light-emitting device Download PDFInfo
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- CN108027544A CN108027544A CN201680039945.1A CN201680039945A CN108027544A CN 108027544 A CN108027544 A CN 108027544A CN 201680039945 A CN201680039945 A CN 201680039945A CN 108027544 A CN108027544 A CN 108027544A
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- Prior art keywords
- light
- emitting device
- wave length
- optical element
- intensity
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-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2/00—Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
- G02F2/02—Frequency-changing of light, e.g. by quantum counters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/12—Combinations of only three kinds of elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/0944—Diffractive optical elements, e.g. gratings, holograms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
- G02B6/0008—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted at the end of the fibre
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2/00—Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
- G02F2/004—Transferring the modulation of modulated light, i.e. transferring the information from one optical carrier of a first wavelength to a second optical carrier of a second wavelength, e.g. all-optical wavelength converter
- G02F2/006—All-optical wavelength conversion
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2203/00—Function characteristic
- G02F2203/26—Pulse shaping; Apparatus or methods therefor
Abstract
The present invention relates to a kind of light-emitting device.The device includes：High-intensity light source（102）, it is configured to the light of transmitting first wave length（10）；Beam-shaping optical element（104）, it is configured to the light for the first wave length launched by high-intensity light source being redistributed in the outgoing beam containing the far-field beam cross-sectional profiles with the flat light distribution in space；And light conversion component（206）, it is configured to be exposed to the outgoing beam with the flat light distribution in space, and at least a portion of the light of first wave length is converted into the light of second wave length（20）, and launch the light of second wave length.
Description
Technical field
The present invention relates to a kind of light-emitting device for being used to produce high-luminance light.
Background technology
For generating the illumination system of high-luminance light photograph for including spotlight, stage illumination, lighting, head lamp and digital light projection
Various applications for attract people's attention.
High-luminance light with desired spatial distribution can be by including such as Light-emitting diode LED or laser etc
Light source light-emitting device obtain, including the light of first wave length launched by light source（Such as blue light）Light beam by towards light
Translation building block is sent.Therefore, light conversion component is irradiated with the light beam including first wave length.Pass through light conversion component, first wave length
Light be converted into the light of second wave length at least in part（Such as yellow light）.Then, when the light mixing of the first and second wavelength,
White light can be obtained.Include the light of first wave length launched by light source（Such as blue light）Light beam there is several watts of exemplary power.
In order to increase the light conversion efficiency at light conversion component, many effort have been done.For example, light conversion component can be placed on
On static state radiator, to increase light conversion efficiency.However, exist for the more of the light conversion efficiency at light conversion component
Improved needs.
The content of the invention
It is at least some in problem above it is an object of the invention to overcome, and provide with improved light output
Light-emitting device.
According on one side, this purpose and other purposes are realized by providing light-emitting device.Light-emitting device includes：It is high-strength
Light source is spent, it is configured to the light of transmitting first wave length；Beam-shaping optical element, it is configured to be sent out by high-intensity light source
The light for the first wave length penetrated is redistributed to the outgoing beam containing the far-field beam cross section profile with the flat light distribution in space
In；And light conversion component, it is configured to be exposed to the outgoing beam with the flat light distribution in space, by the light of first wave length
At least a portion be converted into the light of second wave length, and launch the light of second wave length.
Wording " high-intensity light source " is interpreted as being arranged to have preferably more than 1108W/m2, more preferably 1
109W/m2And most preferably 11011W/m2High irradiance light source.High-intensity light source can be laser diode and/or hair
Optical diode LED.High-intensity light source can be monochromatic.The light beam launched by the high-intensity light source of laser form typically has
There is the Gaussian intensity profile that the cross section profile along the optical axis perpendicular to outgoing beam obtains.Sent out by the high-intensity light source of LED forms
The light beam penetrated typically has lambert's intensity distribution that the cross section profile along the optical axis perpendicular to outgoing beam obtains.Therefore, by
The cross section profile of the light beam of high-intensity light source transmitting is not uniform, and it shows the big change of the function as position.
Wording " beam-shaping optical element " is interpreted as acting on light so that incident beam is reshaped into outgoing
Good light beam（okaylight beam）Element.Specifically, beam-shaping optical element is configured to again divide incident beam
Cloth is into the outgoing beam containing the far-field beam cross section profile with the flat light distribution in space.Flat intensity distribution relative to
Mean intensity in whole surface has the change for being preferably no greater than 10%, and more preferably no more than 5% change, and more preferably
Change no more than 3%.
Wording " light conversion component " is interpreted as the light of first wave length being converted into any component of the light of second wave length.Ripple
Long conversion can be attributed to luminous, fluorescence and/or phosphorescence provides the wavelength of converted transmitting light relative to the wavelength of irradiation light
Stokes shift generation.Light conversion component includes light conversion element.Actual execution light conversion is light conversion element.Light
Conversion element is configured to be irradiated by outgoing beam.
Light-emitting device provides the increased light conversion efficiency at light conversion component.This is because fall on light conversion component
Light beam there is flat profile.This will provide the cross section profile of homogenizer at light conversion component.Therefore, light will be avoided to turn
Change the non-uniform heat flux of component.In this way, light conversion component can be uniformly heated, and can be to avoid thermal quenching may be caused
Local extra heating.This will increase the efficiency of light conversion component.
Beam-shaping optical element can include the waveguide with noncircular cross section.The section perpendicular to waveguide optical axis and
Obtain.Non-circular waveguide has very good spatial light mixed characteristic, to be coupled out obtaining uniformly at end in waveguide
Light distribution.Non-circular waveguide can be optical fiber.The noncircular cross section of waveguide can be from by triangle, square, pentagon, six
Selected in side shape and the group of octagon composition.Edge can be perfectly round（rounded）Or sharp.Therefore, waveguide is not rounded
Shape, which is coupled out end, can be imaged to irradiate light conversion element.
Beam-shaping optical element can include diffraction optical element.Diffraction optical element is arranged to gaussian-shape is defeated
Enter optical beam transformation into the phase element of the light beam at particular job distance with the uniform spot containing sharp edges.Diffraction light
Learning element includes lens and diffraction pattern.
Beam-shaping optical element can be carnival hat beam shaper.Carnival hat beam shaper is arranged to gaussian-shape is defeated
Enter optical beam transformation into the optical element of the light beam at particular job distance with the uniform spot containing sharp edges.
Light-emitting device, which may further include, to be configured to the light launched by high-intensity light source being directed to beam-shaping optical
The optical fiber of element.It may therefore be assured that beam-shaping optical element will be reached from the essentially all light of high-intensity light source transmitting,
So as to cause the improved brightness of light-emitting device.
Beam-shaping optical element preferably produces the beam shape with shape almost identical with light conversion element.
Light-emitting device may further include multiple high-intensity light sources.It is thereby achieved that light-emitting device is improved bright
Degree.
Light-emitting device including multiple high-intensity light sources may further include multiple optical fiber, and the multiple optical fiber is configured
Beam-shaping optical element is directed into by the light launched by corresponding high-intensity light source.Combining multiple light sources can be by so-called
Relay lens complete.However, this will cause critical tolerance and stringent tolerance of the light source relative to optical module.Use basis
Above-mentioned multiple optical fiber, light-emitting device can include multiple light sources, critical tolerance and stringent tolerance without light source.
The area of the inside coupled end of beam-shaping optical element can be more than the area for being coupled out end of each optical fiber.
Therefore, the area of section of the beam-shaping optical element obtained perpendicular to the optical axis of beam-shaping optical element can be more than vertical
In the area of section for each corresponding optical fiber that the optical axis of optical fiber obtains.
The sum of area for being coupled out end of the fibre core of optical fiber can be equal to or less than the inside of beam-shaping optical element
The area of coupled end.This will allow multiple small diameter fibers being combined into a non-circular waveguide.
Beam-shaping optical element may be configured to the light redistribution for the first wave length that will be launched by high-intensity light source
Into outgoing beam so that outgoing beam has shape corresponding with the shape of the light conversion element of light conversion component.Therefore, go out
The shape of irradiating light beam is by the form fit of the light conversion element with light conversion component.This will ensure on whole light conversion element uniformly
Light distribution；Therefore improved light conversion efficiency at light conversion component is provided.
Light conversion component can be further arranged to transmit and/or reflect the light of first wave length.
The system is configured so that has preferably more than 0.5GCd/m by the light of light conversion element transmitting2, more preferably
Ground is more than 1GCd/m2And most preferably more than 3GCd/m2Illuminance（Luminance）.
According to detailed description given below, the other scope of application of the invention will become obvious.However, should
Understand, indicate the preferred embodiment of the present invention with particular instance although being described in detail, only by way of illustration
Provide, because to those skilled in the art, according to the detailed description, the various changes and modifications in the scope of the present invention
It will become obvious.
It is understood, therefore, that specific composition part or described side the invention is not restricted to described equipment
The step of method, because such apparatus and method can change.It should also be understood that terms used herein is just for the sake of description
The purpose of specific embodiment, and be not intended to restricted.It must be noted that when in specification and appended
In in use, unless the context clearly determines otherwise, article " one ", "one", "the" and " described " be intended to indicate that there are element
One or more of.Thus, for example, reference to " unit " or " unit " can include some equipment and similar
Thing.In addition, word " comprising ", "comprising", " containing " and similar wording are not excluded for other elements or step.
Brief description of the drawings
With reference to the attached drawing for showing the embodiment of the present invention, the above-mentioned and other side of the present invention will be described in further detail now
Face.Attached drawing is not considered as limiting the invention to specific embodiment；But they are used for the explanation and understanding present invention.
Fig. 1 and Fig. 2 illustrates the side cross-sectional view of corresponding light-emitting device.
Fig. 3 illustrates the section of the light beam by the beam-shaping optical element transmitting of any light-emitting device in Fig. 1 and Fig. 2
Profile.
Fig. 4 illustrates the perspective side elevation view of the embodiment for the beam-shaping optical element for being connected to multiple optical fiber, described more
A optical fiber is directed light in beam-shaping optical element.
As it is shown in the figures, for illustrative purposes, the size in layer and region is exaggerated, and is therefore provided to illustrate
The general structure of the embodiment of the present invention.Identical reference numeral refers to identical element all the time.
Embodiment
The present invention is described more fully hereinafter with referring now to attached drawing, the invention is shown in the accompanying drawings current excellent
Select embodiment.However, the present invention can be embodied in many different forms, and it should not be construed as limited to reality set forth herein
Apply example；On the contrary, these embodiments are provided for completeness and integrality, and it will fully convey the scope of the invention to technology people
Member.
With reference to Fig. 1 and Fig. 2, two alternate embodiments of light-emitting device 100,200 are disclosed.Except from corresponding one
High-intensity light source 102（Or multiple high-intensity light sources 102）How the light 110 of the first wave length of transmitting is directed to light conversion component
The function of light-emitting device 100,200 shown in 106, Fig. 1 and Fig. 2 is similar.Light-emitting device 100 is illustrated in Fig. 1
Reflective arrangement, and the transmission-type arrangement of light-emitting device 200 is illustrated in fig. 2.For two light-emitting devices 100 and 200
For, it is common, the light 10 of first wave length is partially converted into the light 20 of second wave length by using light conversion component 106
Obtain the white light of high brightness.
Hereinafter, the reflective arrangement by description according to the light-emitting device 100 of Fig. 1, and the then hair by description according to Fig. 2
The transmission-type arrangement of electro-optical device 200.After this, it is the reflective and transmission-type for generally describing light-emitting device 100,200 is real
Apply some more common features of both examples.
Light-emitting device 100 includes one or more high-intensity light sources 102, beam-shaping optical element 104 and light conversion structure
Part 106.
One or more high-intensity light sources 102 are arranged to the light 10 of transmitting first wave length.One or more high-strength lights
Source can be laser diode and/or Light-emitting diode LED.One or more high-intensity light sources 102 can be monochromatic, such as
Launch blue light.Light conversion component is directed in this reflection mode from the light 10 of the first wave length of one or more light sources 102 transmitting
106.Typically there is the Gaussian cross section profile of the optical axis acquirement perpendicular to outgoing beam by the light beam of high-intensity light source transmitting.Cause
This, the cross section profile by the light beam of high-intensity light source transmitting is not uniform.
Beam-shaping optical element 104 is configured to incident beam being shaped as outgoing beam again.Incident beam includes
From the light of one or more high-intensity light sources 102 transmitting.Outgoing beam includes the light for being directed to light conversion component 106.Specifically,
Beam-shaping optical element 104 is configured to incident beam being redistributed in outgoing beam so that its presentation has space
The far-field beam cross section profile of flat light distribution.Therefore, carnival hat shape will be presented in outgoing beam.This is illustrated in figure 3.Cause
This, beam-shaping optical element 104 is configured to the light in redistribution incident beam so that hangs down in the far field of outgoing beam
The cross section profile directly obtained in the optical axis of outgoing beam has uniform light distribution.In this context, term is " uniform " should
When maximum become for being interpreted luminous intensity in flat light distribution turns to ± 10%.Then, beam-shaping optical element 104 is configured
It is redistributed into by the incident beam with Gauss or lambert's cross section profile with non-gaussian or non-lambertian far-field beam section
In the outgoing beam of profile.Therefore, beam-shaping optical element 104 can be carnival hat beam shaper.Carnival hat beam shaper
Be arranged to the inputs light beam of Gauss or lambert's shape being transformed into has containing the uniform of sharp edges at particular job distance
The optical element of the light beam of luminous point.
According to the embodiment of Fig. 1 and Fig. 2, beam-shaping optical element 104 is waveguide.However, such as will in further detail below
Ground discussion, other beam-shaping optical elements 104 can also be used.It is non-that there is the optical axis perpendicular to the waveguide to obtain for waveguide
Circular cross-section.Non-circular waveguide has very good light mixed characteristic, so that the end that is coupled out in waveguide obtains uniformly
Light distribution.Non-circular waveguide can be optical fiber.The noncircular cross section of waveguide can be from by triangle, square, pentagon, six sides
Selected in shape and the group of octagon composition.Edge can be sharp.Edge can be perfectly round.
The non-circular end that is coupled out of the beam-shaping optical element 104 of waveguide form can be changed by being imaged with irradiation light
Element 106.Therefore, beam-shaping optical element 104 may be configured to be launched by one or more high-intensity light sources 102
The light of first wave length is redistributed in outgoing beam so that outgoing beam has the light conversion element with light conversion component 106
The corresponding profile of profile of 106a.Therefore, the shape of outgoing beam is by the shape of the light conversion element 106a with light conversion component 106
Shape matches.This will ensure uniform light distribution on whole light conversion element 106a；Thus provide and change at light conversion component 106
Into light conversion efficiency.For example, in the case of using the light conversion element 106a of square shape, beam-shaping optical member
Part 104 may be configured to the light 10 for the first wave length launched by one or more high-intensity light sources 102 being redistributed to out
In irradiating light beam so that outgoing beam has square profile.From the point of view of efficient cutting technique angle, square light conversion element
Shape is favourable.Light conversion element 106a of the production with square shape is easy.
To beam-shaping optical element 104 it is non-circular be coupled out end imaging in the case of, light conversion element 106a
The image at place is non-circular to be coupled out the shape at end by the form fit with light conversion element 106a.
Light-emitting device 100 may further include one or more optical fiber 103.One or more optical fiber 103 are configured to
The light launched by one or more high-intensity light sources 102 is directed to beam-shaping optical element 104.The quantity of optical fiber 103 can
With the quantity equal to or less than high-intensity light source 102.In Fig. 1 and Fig. 2 the disclosed embodiments, by one or more high intensity
The light that light source 102 is launched is coupled in corresponding optical fiber 103 via coupled lens 105.However, it is also possible to transmitting coupling
The light for closing lens 105 and launched by one or more high-intensity light sources 102 is entered directly into corresponding optical fiber 103
So-called Butt-coupling.It may therefore be assured that the essentially all light from the transmitting of one or more high-intensity light sources 102 penetrates arrival
Beam shaping optical element 104, so as to cause the improved brightness of light-emitting device 100.
The area of the inside coupled end 104a of beam-shaping optical element 104 can be more than the outside coupling of each optical fiber 103
Close the area of end 103b.As non-limiting example, the areas of section of one or more optical fiber 103 can be 0.01 to
0.5mm2.Moreover, as non-limiting example, the area of section of beam-shaping optical element 104 can be 0.04 to 2.0mm2。
Therefore, the area of section of the beam-shaping optical element 104 obtained perpendicular to the optical axis of beam-shaping optical element 104 can be big
In the area of section of each corresponding optical fiber 103 of the optical axis acquirement perpendicular to optical fiber 103.This is illustrated in Fig. 4.In addition,
The sum of area for being coupled out end 103b of optical fiber 103 can be equal to or less than the inside coupling of beam-shaping optical element 104
Hold the area of 104a.This will allow a beam shaping light that multiple small diameter fibers 103 are combined into non-circular waveguide form
Learn element 104.
Light conversion component 106 includes light conversion element 106a.Light conversion element 106a is configured to the light of first wave length
10 are converted to the light 20 of second wave length.Light conversion element 106a is further arranged to the light 20 of transmitting second wave length.As non-
Limitative examples, the surface area of light conversion element 106a can be 0.3 to 0.04mm2.One or more high-intensity light sources 102 have
There is several watts of exemplary power.Therefore, the irradiation level at light conversion element 106a can be about 100W/mm2。
Light conversion component 106 is further arranged to the light 10 of reflection first wave length.
Light conversion component 106 may further include radiator 106b.Towards the radiator 106b of light conversion element 106a
Surface it is preferably reflexive.
Light-emitting device 100 may further include reflector 108.The reflector can be dichroic reflector.However, this
The technical staff in field recognizes that reflector can be speculum or diffraction grating in other embodiments.Reflector 108 is by cloth
It is set to the light 10 of reflection first wave length.When for dichroic reflector when, reflector 108 be arranged to transmission second wave length light
20。
Light-emitting device 100 may further include optical element 110.Optical element 110 is arranged to first wave length
Light 10 is imaged onto on light conversion component 106.Therefore it is arranged to from the light 10 of the first wave length of one or more light sources 102 transmitting
It is imaged onto on light conversion component 106.
By optical element 110 to beam-shaping optical element 104 it is non-circular be coupled out end imaging in the case of,
The non-circular shape for being coupled out end of image at light conversion element 106a is by the form fit with light conversion element 106a.
Transmissive embodiment of the following description for the light-emitting device 200 as disclosed in reference to Fig. 2.The transmission-type of Fig. 2
The embodiment of light-emitting device 200 is very similar to the embodiment of the reflection type light-emitting device 100 of Fig. 1.Therefore, with reference to above.So
And for transmission-type light-emitting device 200, it is not necessary to reflector 108.Moreover, optical element 110 can be omitted.
In addition, the light conversion component 206 of transmission-type light-emitting device 200 can be designed to and reflection type light-emitting device 100
Light conversion component 106 it is different.Light conversion component 206 includes light conversion element 206a.Light conversion element 206a be configured to by
The light 10 of first wave length is converted to the light 20 of second wave length.Light conversion element 206a is further arranged to transmitting second wave length
Light 20.As non-limiting example, the surface area of light conversion element 206a can be 0.3 to 0.04mm2.It is one or more high-strength
Spending light source 102 has several watts of exemplary power.Therefore, the irradiation level at light conversion element 206a can be about 100W/mm2。
Light conversion component 206 is further arranged to the light 10 of transmission first wave length.
Light conversion component 206 may further include radiator（It is not shown）.Radiator can come from for example including through hole
The light of beam-shaping optical element 104 can be entered by the through hole so that light conversion element 206a will be illuminated.Moreover, face
It is preferably reflexive to the surface of the radiator of light conversion element 206a.Light conversion component 206 may further include two
To color reflector 206b.Dichroic reflector 206b is arranged to the light 10 of transmission first wave length and reflects the light of second wave length
20。
Following description is public for the embodiment of the reflection type light-emitting device 100 with reference to disclosed in Fig. 1 and combination Fig. 2 institutes
Both transmission-type light-emitting devices 200 opened.
Light-emitting device 100,200 can include collecting optical element 112.Collect optical element 112 be arranged to collection from
The light that light conversion component 106 is launched, transmits and/or reflected（The light of the light of various wavelength, especially the first and second wavelength）.Receive
Concentrating optical element 112 can be referred to as collimation optics, it provides the standard of the light in the focus for collecting optical element 112
Directly, i.e., substantially parallel light, which may exit off, collects optical element 112.Collect optical element 112 can be lens, herein by
Planoconvex spotlight is illustrated as, but those skilled in the art, which recognize, can use other lenses or speculum and lens or reflection
Mirror system.
Light-emitting device 100,200 can include hybrid component 116.Hybrid component 116, which is arranged to, to be made to enter hybrid component
126 light mixing.Light into hybrid component 126 derives from light conversion component 106, and can include the spectrum of spatial variations
Composition, the i.e. light of the one 10 and the 2nd 20 wavelength can separate in space.Into hybrid component 126 light for example, by multiple
Reflection and/or diffraction space mix.So as to which the light for leaving hybrid component 126 can have than the light into hybrid component 126
Spatially spatial distribution evenly.It is thus possible to obtain the light-emitting device that light output spatially evenly is provided
100、200.As described above, one or more high-intensity light sources 102 can be monochromatic, such as launch blue light.Therefore, first wave
Long light 10 can be blue light, and the light 20 of second wave length can have the wavelength longer than first wave length 10, such as yellow light.
The combination of blue light and yellow light can produce white light.Blue light and yellow light are mixed by using hybrid component 126, light-emitting device 100,
200 can provide the white light with spatial distribution evenly.Hybrid component 126 can be optical fiber.It is thus possible to realize simple
, cost-effective and flexible hybrid component 126.Light into hybrid component 126 can further be existed by total internal reflection
Efficiently propagated in the fibre core of optical fiber.Hybrid component 126 can be alternatively transparent bar.The section of hybrid component 126 can be with
It is non-circular, such as is mixed with square, hexagon or octagonal cross-section to improve light.
Light-emitting device 100,200 may further include additional optical element 114.Additional optical element 114 is by cloth
It is set to and focuses the light into hybrid component 126.It is thus possible to the more efficient coupling in light to hybrid component 126 is obtained, and
It can realize the increased light output for carrying out selfluminous device 100,200.
Above-mentioned light-emitting device can be used in digital projection, street lighting, spotlight, stage illumination, lighting, auto bulb etc.
Etc application in.
Those skilled in the art recognize that the present invention is never limited to above preferred embodiment.On the contrary, in appended claims
In the range of many modification and variation be possible.
For example, beam-shaping optical element 104 can include diffraction optical element.Diffraction optical element be arranged to by
Gaussian-shape inputs light beam is transformed into the phase bit of the light beam with the uniform spot containing sharp edges at particular job distance
Part.Diffraction optical element can include condenser lens and diffraction pattern.
In addition, protected by studying accompanying drawing, disclosure and appended claims, those skilled in the art required by practice
The deformation of disclosed embodiment is appreciated that and realized during the invention of shield.In the claims, word " comprising " is not excluded for other
Element or step, and indefinite article " one " be not excluded for it is multiple.Some arrange is described in mutually different dependent claims
The combination that the pure fact applied is not offered as these measures cannot be advantageously used.
Claims (15)
1. a kind of light-emitting device, including：
High-intensity light source（102）, it is configured to the light of transmitting first wave length（10）；
Beam-shaping optical element（104）, it is configured to the light redistribution for the first wave length that will be launched by high-intensity light source
Into the outgoing beam containing the far-field beam cross section profile with the flat light intensity distributions in space；And
Light conversion component（106；206）, it is configured to
- outgoing beam with the flat light intensity distributions in space is exposed to,
A part for the light of-transmission and/or reflection first wave length；And
- another part of the light of first wave length is converted into the light of second wave length（20）, and launch the light of second wave length；With
And
Hybrid component, it mixes the light of first wave length with the light of second wave length.
2. light-emitting device according to claim 1, further comprises collecting optical element, it, which is configured to collect, comes from light
The light of the first wave length of conversion element and the light of second wave length.
3. light-emitting device according to claim 1 or 2, further comprises additional optical element, it is configured to
The light of one wavelength and the light of second wave length are focused in mixing chamber.
4. light-emitting device according to claim 1, wherein the beam-shaping optical element includes having noncircular cross section
Waveguide.
5. light-emitting device according to claim 4, wherein the waveguide is optical fiber.
6. light-emitting device according to claim 1, wherein the beam-shaping optical element includes diffraction optical element.
7. according to the light-emitting device any one of claim 1-6, wherein the beam-shaping optical element is that carnival hat is penetrated
Beam shaper.
8. according to the light-emitting device any one of claim 1-7, further comprise optical fiber（103）, its be configured to by
The light launched by high-intensity light source is directed to beam-shaping optical element.
9. according to the light-emitting device any one of claim 1-8, further comprise multiple high-intensity light sources, wherein corresponding
Optical fiber be configured to the light launched by corresponding high-intensity light source being directed to beam-shaping optical element.
10. light-emitting device according to claim 9, wherein the inside coupled end of the beam-shaping optical element（104a）
Area be more than each optical fiber and be coupled out holding（103b）Area.
11. the light-emitting device according to claim 9 or 10, wherein the sum of area for being coupled out end of the optical fiber is equal to
Or the area of the inside coupled end less than beam-shaping optical element.
12. according to the light-emitting device any one of claim 1-11, wherein the beam-shaping optical element is configured
It is redistributed into by the light for the first wave length launched by high-intensity light source in outgoing beam so that outgoing beam has to be turned with light
Change the corresponding shape of shape of the light conversion element of component.
13. according to the light-emitting device any one of claim 1-12, wherein the light-emitting device is configured so that and penetrates
The end that is coupled out of beam shaping optical element 104 is imaged on light conversion element 106a.
14. according to the light-emitting device any one of claim 1-13, wherein the hybrid component is optical fiber.
15. according to the light-emitting device any one of claim 1-14, wherein the light-emitting device is used to come freely numeral
Projection, street lighting, spotlight, stage illumination, lighting, auto bulb composition using in an application in group.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15175569 | 2015-07-07 | ||
| EP15175569.1 | 2015-07-07 | ||
| PCT/EP2016/065332 WO2017005604A1 (en) | 2015-07-07 | 2016-06-30 | Light emitting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108027544A true CN108027544A (en) | 2018-05-11 |
| CN108027544B CN108027544B (en) | 2022-02-08 |
Family
ID=53540644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680039945.1A Active CN108027544B (en) | 2015-07-07 | 2016-06-30 | Light emitting device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10845032B2 (en) |
| EP (1) | EP3320396B1 (en) |
| JP (1) | JP2018521478A (en) |
| KR (1) | KR20180028477A (en) |
| CN (1) | CN108027544B (en) |
| WO (1) | WO2017005604A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671656A (en) * | 2019-11-13 | 2020-01-10 | 中国商用飞机有限责任公司 | Laser light source module and laser lamp comprising same |
| CN112823301A (en) * | 2018-10-17 | 2021-05-18 | 罗伯特·博世有限公司 | Apparatus and method for providing a projector with a polychromatic light beam, projector and method of manufacture |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6761600B2 (en) | 2017-01-05 | 2020-09-30 | 大日本印刷株式会社 | Lighting device |
| JP7214600B2 (en) * | 2019-09-18 | 2023-01-30 | 株式会社東芝 | Optical element assembly, optical imaging device, and optical processing device |
| JP7395410B2 (en) | 2020-04-06 | 2023-12-11 | 株式会社Ｓｃｒｅｅｎホールディングス | Optical equipment and 3D printing equipment |
| US11365860B2 (en) * | 2020-05-18 | 2022-06-21 | Young Optics Inc. | Optical lens |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6272269B1 (en) * | 1999-11-16 | 2001-08-07 | Dn Labs Inc. | Optical fiber/waveguide illumination system |
| US20050162746A1 (en) * | 2003-04-10 | 2005-07-28 | Lizotte Todd E. | Radially non-symmetric beam forming elements for correction of energy profile distortion due to lateral beam drift |
| JP2006106703A (en) * | 2004-10-05 | 2006-04-20 | Hitachi Via Mechanics Ltd | Compensator optics using beam shaping for stability of laser beam delivery system and radially non-symmetric beam forming element to correct energy distribution form distortion caused by lateral direction beam drift |
| TW201140142A (en) * | 2010-05-14 | 2011-11-16 | Delta Electronics Inc | Light source system and projection apparatus using the same |
| JP2013145722A (en) * | 2012-01-16 | 2013-07-25 | Stanley Electric Co Ltd | Vehicular lamp unit |
| US20140369064A1 (en) * | 2013-06-18 | 2014-12-18 | Sharp Kabushiki Kaisha | Light-emitting device |
| US20150036107A1 (en) * | 2013-07-31 | 2015-02-05 | Nichia Corporation | Light source unit and optical engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7499207B2 (en) | 2003-04-10 | 2009-03-03 | Hitachi Via Mechanics, Ltd. | Beam shaping prior to harmonic generation for increased stability of laser beam shaping post harmonic generation with integrated automatic displacement and thermal beam drift compensation |
| JP2015028501A (en) * | 2011-11-24 | 2015-02-12 | 住友電気工業株式会社 | Wavelength converter and laser device |
-
2016
- 2016-06-30 WO PCT/EP2016/065332 patent/WO2017005604A1/en unknown
- 2016-06-30 US US15/741,724 patent/US10845032B2/en active Active
- 2016-06-30 CN CN201680039945.1A patent/CN108027544B/en active Active
- 2016-06-30 JP JP2018500515A patent/JP2018521478A/en active Pending
- 2016-06-30 KR KR1020187003652A patent/KR20180028477A/en not_active Application Discontinuation
- 2016-06-30 EP EP16734345.8A patent/EP3320396B1/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6272269B1 (en) * | 1999-11-16 | 2001-08-07 | Dn Labs Inc. | Optical fiber/waveguide illumination system |
| US20050162746A1 (en) * | 2003-04-10 | 2005-07-28 | Lizotte Todd E. | Radially non-symmetric beam forming elements for correction of energy profile distortion due to lateral beam drift |
| JP2006106703A (en) * | 2004-10-05 | 2006-04-20 | Hitachi Via Mechanics Ltd | Compensator optics using beam shaping for stability of laser beam delivery system and radially non-symmetric beam forming element to correct energy distribution form distortion caused by lateral direction beam drift |
| TW201140142A (en) * | 2010-05-14 | 2011-11-16 | Delta Electronics Inc | Light source system and projection apparatus using the same |
| JP2013145722A (en) * | 2012-01-16 | 2013-07-25 | Stanley Electric Co Ltd | Vehicular lamp unit |
| US20140369064A1 (en) * | 2013-06-18 | 2014-12-18 | Sharp Kabushiki Kaisha | Light-emitting device |
| JP2015002160A (en) * | 2013-06-18 | 2015-01-05 | シャープ株式会社 | Light-emitting device |
| US20150036107A1 (en) * | 2013-07-31 | 2015-02-05 | Nichia Corporation | Light source unit and optical engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112823301A (en) * | 2018-10-17 | 2021-05-18 | 罗伯特·博世有限公司 | Apparatus and method for providing a projector with a polychromatic light beam, projector and method of manufacture |
| CN112823301B (en) * | 2018-10-17 | 2023-03-17 | 罗伯特·博世有限公司 | Apparatus and method for providing a projector with a polychromatic light beam, projector and manufacturing method |
| CN110671656A (en) * | 2019-11-13 | 2020-01-10 | 中国商用飞机有限责任公司 | Laser light source module and laser lamp comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108027544B (en) | 2022-02-08 |
| US10845032B2 (en) | 2020-11-24 |
| JP2018521478A (en) | 2018-08-02 |
| KR20180028477A (en) | 2018-03-16 |
| WO2017005604A1 (en) | 2017-01-12 |
| US20180195694A1 (en) | 2018-07-12 |
| EP3320396B1 (en) | 2019-01-02 |
| EP3320396A1 (en) | 2018-05-16 |
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